Free DNS Lookup Developer Tool Online
Look up A, AAAA, MX, TXT, NS, CNAME, and other DNS records for any domain with fast, accurate DNS queries.
IN: Domain name · OUT: DNS records · RUNS: 100% in your browser
Lookups are performed via Google's public DNS-over-HTTPS API directly from your browser.
Frequently asked questions
How is this different from a fully browser-only tool?+
DNS lookups require querying DNS infrastructure, which browsers can't do directly. This tool sends your query to Google's public DNS-over-HTTPS API over a standard HTTPS request, so no custom backend server is involved.
What's the difference between A and AAAA records?+
An A record maps a domain to an IPv4 address; an AAAA record maps it to an IPv6 address. A domain can have both simultaneously.
What do MX records tell me?+
MX (Mail Exchange) records specify which mail servers handle email for a domain, along with a priority value — lower priority numbers are tried first.
Why might I see no records for a domain I know exists?+
The record type you queried may simply not be configured — for example, a domain can have A records but no MX records if it doesn't handle email. Try switching the record type dropdown.
Does this show real-time DNS or cached results?+
Results reflect what Google's public resolver currently has, which respects each record's TTL (time-to-live) for caching — recent DNS changes may take time to propagate globally.
Is this useful for debugging DNS propagation after a change?+
Yes, it's a quick way to check whether a DNS change has taken effect from Google's resolver's perspective, though different resolvers worldwide may show old cached values until their TTL expires.